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The ORDERING section of Documentation/atomic_t.txt can easily be read as saying that conditional atomic RMW operations that fail are ordered when those operations have the _acquire() or _release() suffixes. This is not the case, therefore update this section to make it clear that failed conditional atomic RMW operations provide no ordering. Reported-by: Anna-Maria Behnsen <anna-maria@linutronix.de> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Will Deacon <will@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Jade Alglave <j.alglave@ucl.ac.uk> Cc: Luc Maranget <luc.maranget@inria.fr> Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Akira Yokosawa <akiyks@gmail.com> Cc: Daniel Lustig <dlustig@nvidia.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: <linux-arch@vger.kernel.org> Cc: <linux-doc@vger.kernel.org> Acked-by: Andrea Parri <parri.andrea@gmail.com> Acked-by: Mark Rutland <mark.rutland@arm.com> |
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